Deprecate code for Project. Use title and path

lib/api/helpers.rb

@@ -6,7 +6,7 @@ module Gitlab
 
     def user_project
       if @project ||= current_user.projects.find_by_id(params[:id]) ||
-                      current_user.projects.find_by_code(params[:id])
+                      current_user.projects.find_by_path(params[:id])
       else
         not_found!
       end

lib/gitlab/auth.rb

@@ -34,6 +34,7 @@ module Gitlab
         extern_uid: uid,
         provider: provider,
         name: name,
+        username: email.match(/^[^@]*/)[0],
         email: email,
         password: password,
         password_confirmation: password,